Brake Piston and Seals Front Caliper Kit - Yamaha MT-125 Stainless Steel

Yamaha MT-125 Front Brake Caliper Piston Kit – TRK Stainless Steel Upgrade

The front brake caliper fitted to the Yamaha MT-125 is exposed to constant moisture, road dirt and winter salt, all of which can cause the original brake pistons to corrode over time. As corrosion develops, the pistons may no longer retract smoothly, leading to brake drag, uneven pad wear and reduced braking performance. This TRK stainless steel front brake caliper piston kit is manufactured as a precision replacement for the original Yamaha components, providing excellent corrosion resistance and restoring smooth, consistent caliper operation.

Manufactured from high-quality stainless steel, TRK brake pistons are designed to outlast conventional plated pistons while offering exceptional value compared with genuine Yamaha replacement parts. Every TRK stainless steel brake piston is covered by a lifetime guarantee, giving long-term confidence in both durability and performance. For the best results, thoroughly clean the caliper seal grooves before installation to remove corrosion and debris, ensuring the new seals seat correctly and the pistons move freely throughout their service life.

Motorcycle fitment

Suitable for the following Yamaha motorcycle:

• Yamaha MT-125  2015 - 2025
• Yamaha YZF-R 125 2014 - 2025

Why choose TRK stainless steel pistons

• Designed as a direct replacement for Yamaha MT-125 front brake calipers
• Premium stainless steel construction for maximum corrosion resistance
• Precision manufactured for a reliable fit and smooth operation
• Excellent value compared with genuine Yamaha components
• Lifetime guarantee on every TRK stainless steel brake piston

Benefits of rebuilding your brake caliper

• Improves braking response and lever feel
• Reduces the risk of sticking pistons and brake drag
• Encourages even brake pad wear
• Helps restore safe and dependable braking performance

Helpful rebuild hints

• Clean seal grooves thoroughly before fitting new seals
• Remove corrosion and road salt from the caliper body
• Inspect the caliper bore for damage or excessive wear
• Lubricate components using fresh brake fluid or red rubber grease
• Check piston movement before refitting the caliper to the motorcycle

Installation notes

• Inspect the complete caliper during disassembly
• Replace worn seals and damaged components where necessary
• Bleed the hydraulic brake system thoroughly after installation
• Carry out a full brake function check before riding